unstable air containing an excess of condensation nuclei. unstable, moist air. either stable or unstable air.
UAV Campus | Remote Pilot FAA Exam Prep for Drones Latest Questions
can be easily removed without the use of tools. is visible to the visual observer or other crew members. does not adversely affect the center of gravity.
does not contain any exposed rotating parts that would lacerate human skins upon impact. has an airworthiness certificate issued under Part 21. is labeled as Category 4.